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(No Model.) 13 Sheets-Sheet 1. DE KERNIEA J. T. HETT. GALCULATING MACHINE. No. 580,868. Patented Apr. 20, 1897.

(N6 Model.)

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GALCULATING MACHINE.

Patented Apr. 20, 1897.

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13 Sheets-Sheet 3.

(No Model.)

DE KERNIEA J. T. HIETT.

GALGULATING MACHINE.

Patented Apr. 20, 1897.

No se Model) DE KEBNIEA J. Tl HIETT-l Sheet She t4 GALGULATING MACHINE.

No. 580,863. PatentedApr. 20, 1897.

GALGULATING MACHINE.

Patented Apr. 20, 1897.

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` GALGULATING MACHINE.

No. 580,868. Patented Apr. 20, 1897.

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(No Model.) I 13 Sheets-Sheet 7.

. DE KERNIEA J. T.A HIETT.

GALGULATING MACHINE. l No. 580,863. Patented Apr. 20, 1897.

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{No Model.) DE KERNIEA Jl Tl HETT'IB Sheets-Sheet 8.

GALCULATNG MAHINE.

No. 580,863, Patented Apr. 20. 1897.

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(No Model.) n 13 Sheets-Sheet 9, DE KERNIEA J. T. HIETT.

CALGULATING MACHINE.

No. 580,863 Patented Apr. 20, 1897.

(No Model.) DE KBRNIEA TI Sheets-Sheet 10.

CALGULATING MACHINE.

No. 580,863. Patented Apr. 20, 1897.

13 Sheets-Sheet 11.

DE KBRNEA J. T. HIBTT.

(No Model.)

GALCULATING MAGHNE.

Patented Apr.20,1897.

(No Model.) 13 Sheets-FSheet 12.

DE KERNEA J. T. HIETT.

GALGULATING MACHINE.

NO. 580,863. Pa'GBIItGdApI. 20, 1897.

13 Sheets-Sheet 13.

DE KBRNIBA J. T. HIBTT. GALGULATING MACHINE.

No. 580,863. PatentedApr. zo, 1897.

(No Model.)

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UNITED STATES PATENT @Etica DE KERNIEA J. T. HIETT, OF ST. LOUIS, MSSOURI, ASSIGFOR, BY DIRECT AND MSNE ASSIGNMENTS, OF THREE-FOURTHS TO EDMUND F TICK- HAM, OF SAME PLACE, AND BENJAMIN T. CABLE, F ROCK ISLAND,

ILLINOTS.

GALCUE Ami'lNG-MCHlNE.

SFECEFCATION forming part of Letters Patent No. 580,863, dated April 20, 189'?.

Application iiled September 1G, 1396, Serial No. 605,983. (No model To @ZZ whom, t may concern:

Be it known that I, Dn KERNIEAJ. T. Hin'r'r, a citizen of the United States, residing at the city of St. Louis, State of Missouri, have invented a certain new and useful Improvement in Calculating-Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, 'forming a part of this specification, in which` Figure lis a side elevational view of my improved machine, the parts being shown in their normal position, the casing and frame of the machine being shown in section. Fig. 2 is a side elevational view showing thelever thrown forward and the position the different parts assume when the lever is in this position. Fig. 3 is a top plan view, a portion of the printing mechanism being removed and part of the keyboard being shown in section. Fig. 4t is a longitudinal sectional view illustrating the front portion of the machine, said view being taken on a line this side of the fifth series of lieys. Fig. 5 is a sectional view of the rear portion of the machine, taken on the same line of section, illustrating the position of the rack of the depressed key just before it is engaged by its respective wheel in the adding mechanism. Fig. 6 is a sectional view illustrating the position of the parts when the rack has been engaged by the wheel of the adding mechanism. Fig. 7 is a side elevational view of the rear end of the machine, showing the parts in their normal position. Fig. S is a plan view with the key-bars removed, showing the frontportion of the machine. Fig. 9 is a continuation of Fig. S, showing the rear portion of the machine. Fig. lO is a rear elevational view, a portion of the printing mechanism being omitted. Fig. 11 is a cross-sectional view through the keyboard online 11 ll, Fig. 4f. Fig. 12 is a top plan view illnstrating the total-key and its connections. Fig. 13 is a side elevational view of the totalkey and its connections as seen en line 13 13, Fig. 12. Fig. let is a side elevational view of the last snail-wheel to the left, as taken on line 1-/1 14, Fig. 12, showing the stop for said snail-wheel which determines its zero position. Fig. 15 is a view showing an ordinary cam which can be used instead of the snailwheel. Fig. 1G is a top plan view of the printing mechanism. Fig. 17 is a rear elevational view of said mechanism. Fig. 1S is a view illustrating the different key-bars of a nest. Fig. l!) is a plan view showing the manner of nesting the key-bars of each series. Fig. 2O is a side elevational view of the nest shown in Fig. 1i). Fig. 2l is a detailed view illustrating the operation of the transferring mechanism, which cooperates with the adding mechanism. Fig. 22 is a detail plan view of the cam-lever by which the frame of the adding mechanism is depressed. Fig. is a sectional view on line 23 2.3, Fig. 9.

is a sectional view of line 2a 211, Fig. 5. Fi 25 is a sectional view on line 25 E25, Fig. 5.

This invention relates to a new and useful improvement in calculating-machines, the object being to construct a machine of the character described which will add, subtract, divide, and multiply numbers. In subtracting and dividing numbers a special chart orguide is to be used in connection with the machine, but as that forms no part of this present invention I have not illustrated the same, nor will l explain the details, because they are well known and understood by those skilled in the art to which my invention relates. I have, however, shown in addition to the adding mechanism a certain device which is applied to the machine or which forms a part ofn the machine, by the use of which numbers may be multiplied or square or cube root obtained in a simple and easy manner.

The novel features of this invention are, first, the arrangement and peculiar construction of the key-bars with their actuated racks, in combination with the adding mechanism, whereby the racks are iirst placed in'position before they engage the adding mechanism, thus insuring a proper and positive movement of the adding mechanism from the racks when the operatii'ig-lever is actuated second, the

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novel construction of the operating-lever in 95 combination with the racks, the keyboard, and the adding mechanism,whereby when the racks are in position said lever will throw the adding mechanism into engagement with the racks and move the racks so as to actuate Fig. 2l 65 IOO the adding mechanism while said adding mechanism is in engagement, said lever only releasing the adding mechanism and permitting its disengagement from the racks after the racks have completed their movement; third, the peculiar construction and arrangement of the adding mechanism in combination with a transferring de 'ice for transferring the amount added to one addingwheel, when said amount exceeds nine, to the next adding-wheel; fourth, the peculiar construction and arrangement of the adding mechanism and the use of a cam or snail wheel in connection with said adding mechanism, in combination with the printing-segments, whereby, when desired, a total of the amount contained in the adding mechanism can be obtained at any time without disturb-- ing the adding-wheels; fifth, the peculiar construction of the printing-segments in combination with a pivo t-ed Zero-type-carrying deyice which is automatically thrown into position on all the segments to the right of the one actuated; sixth, the novel arrangement of these piroted printingcharacters on the swinging printing-segments, whereby when any of said segments are operated and said pivoted printin g-characters to the rightof said operated segments are in position they will not interfere with the operation of the segments to which they are pivoted; seyenth, the novel construction and arrangement of the printing-haminer and its operating mechanism; eighth, the peculiar construction of the supportiiig-frame for this printing-hammer and the paper-feed, whereby the paper te be printed upon, such as the leaf of a book, may be introduced from the side, and, finally, the invention consists in the construction, arrangement, and combination of the several parts of my device, all as will be hereinafter described, and afterward pointed out in the claims.

in the drawings,l indicates a suitable frame in which the operating mechanism is mounted. rlhis frame is braced by suitable crossbars and through-bolts and preferably7 incased by a suitable shell, but as the frame and shell may be changed in different ways and still answer the purposes Vfor which they are designed l will not `give a detailed description here of these parts.

2 and 3 indicate two shafts arranged in the front part of the machine, upon which the key-bars #t are piyoted. The arrangement of these key-bars is more clearly shown in Figs. 3 and l0, where it will be seen that the `icybars for a series of keys-that is, lin speaking' of a series of keys l mean those keys which bear the numerals from l to W, inclu.- sive-are nested, the nest being preferably divided into two divisions, five of which keybars of a nest being piyoted on one of said shafts, as 2, while the remaining Yfour of the nest are pivoted on the shaft 3. Each keybar has connected to it an ear 5, which receives the shank G of a key 7, said. key being held in its normal. position by a spring S.

Formed on or attached tothe key-bars Ll are fingers D, which with the key-bars form recesses of Varying depths, according to the position of the key-bar in the nest of keys and the number on the key attached to that particular key-bar. ln othcrwords, a recess in the key-bar to which key l is attached is but one-ninth as deep as the recess of the key-bar to which key i Sl is attached. The intermediate keys have their recesses graduated between the shallowest and the deepest, as shown in Fig. 1S, wherein the key-bar shown at the top of the tigure is for key tl, while the key-bar shown at the bottom ofthe gure is for key 1.

lO indicates sliding bars which l will call rack-bars, Jecause the racks which engage the adding mechanism are attached to these bars. rlhese bars are slidingly mounted in the frame of the machine beneath the key-bars, and springs ll, attached to said rack-bars and to the framing, tend to force said rackbars forward ly at all times upon their release.

l2 indicates yielding trips which are arranged in Vfront of the rack-bars to hold said rack -bars in their normal rear position. These trips are provided with cross-bars l5) at 'their upper ends, which engage the keybars, whereby when said key-bars are dcpressed the trips are also depressed. The cross-bars 1.3 are so arranged that one crossbar includes one nest of key-bars, whereby upon the operation of any one of the keys in a nest said key-bar will aetuate this trip and release the rack-bar controlled bythe trip. ln the drawings Vhere are shown nine series of keys, with which coperatie nine trips, said tri is each controlling a rack-bar, of which there are also nine. lit will be understood in this connection that while I have shown nino series of keysand ninerack-oars the capacity of the machine could be increased or diminished without departing from the nature and principle of my invention.

Each rack-bar is pi-oyided with a cross-bar l-t, adapted to cooperate with the recesses in the key-bars forming the nests, that is, these cross-bars lt are of suelrdimensions as to in-v clude in their path of movement an entire nest of key-bars, as shown in Fig. S. In this respect they correspond with the cross-bars 13 of the trips l2. 'Upon the actuation of any key in a series said key will depress its atta ched key-bar,which, bearing upon the crossbar i3 of the trip l2, will force said trip out of the path of its rack-bar. rlhe rack-bar being released, its spring ll will bring' it forward until the cross-bar l-lis seated in the recess of the depressed key-bar. ly the prerence of fingers t) it is impossible to operate any key in a series after one of the keys in that series has been operated. In Fig. it this construction is clearly illustrated, where it will be seen that key 5 has been depressed,

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releasing the rack-bar, and that the rack-bar has moved forward until its cross-bar let has become seated in the recess and its motion arrested. The finger 0 of the key-bar will be under the cross-bar 1l when the key is depressed and the rack-bar moves forward, and will hold said depressed key down until the rack-bar has been returned to its normal position. This enables the operator to determine at any time before the operating-lever is operated what keys have been depressed, and if a mistake has been made the lever may be pulled forward, as will hereinafter be described, and all the key-bars released and the rack-bars restored to their normal position without affecting the adding mechanism.

15 indicates racks on the rack-bars, which racks are adapted to engage wheels in the adding mechanism. These wheels may be in the form of pinions, but l have shown them as half lantern-wheels 1G, which wheels are conjoined to numbered disks 17, loosely mount-ed on a shaft 18, journaled in a frame 1f), which is pivoted to the framing 1 at 20.

21 indicates a detaining-pawl which engages the teeth of wheel 1G and serves to center the teeth thereof relative to its respective rack.

22 indicates an operating-lever pivoted on each side of the frame of the machine at 23, thereby extending entirely across the breast of the machine, so that it can be operated by grasping it at any point over the machine. The lower end of this operating-lever has mounted upon it a pivoted dog 21, which is adapted to en gage and depress a cam-lever 25, pivoted at 2G to the framing of the machine. This lever 25 and dog` 2l are so arranged relative to each other that when the operatinglever is pulled forward the dog will straighten out, as shown in Fig. 2, and depress the lever 25. A rod or wire 27, con.- nected to the dog and to a pivoted handle 28 on the upper end of the lever, is adapted to throw the dog 24E out of operative relation to vthe lever 25, in order to permit the handle 22 to be pulled forward without operating lever 25, as when a mistake has been made in depressing the wrong keys on the keyboard or it is desired to return the adding mechanism to zero, as will hereinafter be explained.

Connected to the end of lever 25 is a link 2fl,whose other end is connected tothe swinging frame in which the shaft 1S of the adding mechanism is mounted.

From the above it will lee seen that by depressing a key on the keyboard, which will release a rack-bar, said rack-bar will move forward until it is arrested, at which time a number of teeth on rack 15 will have passed a point on wheel 16 equal to the number on the key which was depressed. A movement of the lever 22 in a forward direction will rock lever 25 and depress the `frame of the adding mechanism until the tooth at the lowest point of wheel 1G will engage the rack-bar.

Upon the forward movement of lever 22 an arm 30, fixed thereto, as shown in Figs. 1, 5, (3, and 9, will, after the dog 2i has engaged the lever25 and depressed the frame of the adding mechanism, engage a lever 31, pivoted. to said arm 3 This engagement is preferably accomplished by means of a lat eral projection 32 on the arm SO, which engages the arm 3l. after an initial movement has been imparted to the lever 22, during which initial movement the adding mechanism was thrown into engagement with the racks. `Whcn the projection engages the lever ill, then said lever 31 becomes part of lever 22, and by reason of a linked connection 33 with a cross-bar 3l will, through the niedium of said cross-bar engaging a projection 14E on the rack bar or bars which have been actuated, return said rack-bars to their nor` mal position. This projection 1l on the rackbar preferably has the cross-bar 1l mounted in its upper end, as shown. This return of the rack-bars is accomplished during the final movement ot' lever 22, and as the rack-bars are in engagement with the wheels 1G said wheels 16 will be rotated a distance corresponding to the movement of the rack-bars. In Fig. 5 it will be seen that a rack-bar has been moved forward the distance of five teeth, which means that a 5 key has been depressed. 1n this 'ligure the lever 22 has not yet been operated. When, however, the lever 22 is operated, it first depresses the frame of the adding mechanism so that the teeth of wheel 1G engage the rack-bar. ly this time, as shown in Fig. G, the projection 32 will have engaged the lever 31, and a further movement of lever 22 will, through the movement of cross-bar 3l, return the rack and rotate the wheel. These racks in their normal position are so located relative tothe wheels 1G that wheneversaid frame of the adding mechanism is depressed one of the teeth of wheels 1G (the lowest) will engage with the forward recess of the racks. ily this construction when the racks are in engagement with the wheels and are returned to their normal position the wheels are never released untilthe racks have completed their movement. Thus it will be seen that no momentum is imparted to the wheels 1G, but, to the contrary, said wheels are brought to a dead-stop and then released.

llihenever by the repeated actuation of any of the wheels 1li said wheels have been made to travel nine-tenths of a complete rotation, it is necessary to transfer the amount added on said wheel to the next higher wheel. I will new describe the manner in which this is accomplished.

Each of the iinlicating-wheels 17, which are conjoined to wheels 1G and preferably form part thereof, is provided with a projection or tooth 3U indicates what. l shall term a hook-bar, which is pivoted to a rock-arm 37, said arm being mounted upon a shaft 3S. The forward end of hook-bar 3G is formed like a hook which normally engages a bar 39, rig- IOC) IIO

idly 'fixed to the framing of the machine. Vifhen the hooi; is thus in engagement with the bar 3),it is in the path of the tooth or projection 35 on wheel 17, and when said wheel has made nine-tenths of a rotation the projection is in such position that it has engaged and released the hook-bar from the bar 30, in which event a spring 4:0, attached to roch-arm 3S, will cause said hook-bar to be retracted until a projection Lil, carried thereby, has engaged the roch-arm S8, as shown in Fig. G, which projection arrests the rearward movement of the hook-bar and at the same time places a projection l2, depending from the rea-r end of said hook-bar, in the path of a traveling transfer mechanism, which is operated as follows: lVhen the bar Si moves to the rear to carry with it the rack-bars, it also engages a projection ll-l-f in its path, said projection elli extending upwardly from a linlt all, which is connected te one member of a bell-crank lever, of which the member -lti forms the other part. This bell-crank lever is pivoted beneath a crossfbar of the frame of the machine, located at the front end of the machine, and a spring lid, connected to the member -l-G, tends to hold said member to one side of the machine, which we will say is the left-hand side of the machine. As before stated, the engagement of bar 3l with the projection 43 will move said bell-crank lever from the lefthand side of the machine to the right-hand side of the machine. The rear end of member l0 has extending upwardly a projection 47, which engages a'stud -lS, said stud extending from a frame et), slidingly mounted on a shaft 50, secured to the framing of the machine. This frame -ltl extends forwardly and embraces a grooved shaft 5l, mounted in a swinging frame 5l, said frame it) confining between its members a pinion 52, which is provided with a key running in the groove of shaft 5l. This shaft is adapted to be rotated and rotate with it the pinion 52.

The means for causing the rotation of shaft 5l. is illustrated in Figs. 2 and 7, where it will be( seen that an arm 53 is fixed to lever 22. A pivoted segment 5l is oscillated from said arm 53 by a linl: 55, said segment being held normally in a forward position by a spring 5G. Segment 5l meshes with a pinion 57, to which pinion is conjoined a ratchet-wheel 5S, as shown more clearly in lEig.

50 indicates a fly-wheel carrying a pawl GO, which cooperates with the ratchet` Conjoined to this fly-wheel is a pinion (il, meshing with a pinion 62, mounted on the end of the shaft 5l, upon which the pinion 52 is mounted.

By reference to Figs. 2 and 7 it will be seen that when the operating-lever 22 is moved from the position shown in Fig. 7 to the position shown in Fig. 2 it will, through the medium of arm and link 55, oscillate segment -t and store up power in spring 5G. Immediately that lever 22 is released spring 50 tends to return it to its normal position and by reason of the ratchet-and-pawl connection with the ily-wheel also rotates said fly-wheel positively until the segment completes its forward movement, when said ilywheel will continue to rotate by reason of its momentum. This actuation of lever 22 will, as we have seer, move the arm t6 of the bellcrank lever to the right-hand side of the machine, and as soon as said lever is released the spring l-G will act to return the bell-crank lever to its normal position at the left-hand side of the machine, and the pinion 52 will also be rotated. lf, as before described, any of the hook-bars have been thrown by the pins on the indicator-wheels 17, said hook-bars will have been moved so that their depending projections 1:2 are thrown in the path of the frame Llt) or a projection l?) extending npwardly from said frame. The two projections just described, contacting with each other, as shown in Fig. C, will arrest the frame al() in its movement, and the rotating pinion will engage a tooth or projection on the lower end of rock-arm 3S and force said rock-arm forward, as shown in Fig. 2l, restoring the hook-bar to its engaged position relative to the bar Si) and also moving forward a pushbar (53, whose end will engage the teeth of the next wheel l0 and move said next wheel 1G the distance of one tooth. This push-bar (i3 is pivoted to the hook-bar, as shown in Figs. 5 and b', so that upon the completion of its movement, or when restored to its normal position, it will permit the travel of wheel 1G without interruption, said push-bar riding over the teeth of the wheel.

lly moving the frame elf.) and pinion to the right of the machine said pinion will engage the rock-arms of the units-wheel first, and if by a transfer from the units-wheel the tens-wheel releases its bar the frame t0 will be arrested at the tens rock-arm 3S and carry from the tens-wheel. to the humlreds-wheel, and so on along the entire line.

Secured to the rack-bars is alink l, whose other end engages an arm depending from the printing-segmonts (i5, said printing-seg ments being pivotally mounted on a shaft titl, arranged across the rear end of the machine. rilhese printing segments, as shown more clearly in Fig. l0, are nested together, that is, there is no space except that necessary for the easy operation of each segment between the segments. All of the segments extend straight down and are mounted directly upon the shaft UG. As the rack-bars to which the separate or individual segments are connected are distributed practically over the entire width of the machine, it is necessary that a straight and positive connection be made from the raclebars to the segments.

Referring to Fig. lO, the outer segments extend down and are directly mounted upon the shaft (5G, while a cross-piece (i7 extends laterally and is mounted upon the shaft (iii near the ends of said shaft, said piece 57 being then extended downwardly and connected IOO IIO

to the links (la. The segments next to the outer segments are connected to their respective rack-bars by means of a vertical portion G8, mounted upon the shaft 66 to the inside 0f the vertical portion of the outer segments, said vertical portion 68 being then bent inwardly and horizontally under the portion G7 and downwardly, affording a bearing on shaft 6G, and under the outer segments to the segments next to the outer segments. The next or third segments from the outside are also extended down and have a direct bearing upon shaft 6G. A cross-bar G9 connects the lower ends of these segments to vertical portions 70, mounted on the shaft G0 within the line ofthe vertical portions 68. The next or fourth segments from the outside extend down vertically and have a direct bearing on shaft G6, while the portions of said segment to which the links 54 are connected are formed with a j og or bend 7l to avoid the horizontal portieri (S9. The fifth segment from the end, being the middle segment of the nest, extends straight down and has but one bearing on the shaft GG.

It is obvious from the above description that any movement of the rack-bar will move the respective segments a corresponding distance, and it is desirable that this relation between the segments and rack-bar be maintained7 because the segments are then balaneed.

In order to print a Zero mark or naught to the right of any number presented to the hammer by any-segment, I pivotally mount on said segments a zero-carrying frame, which frame normally rests upon a bar 7 3 when said frame is not in printing position. In order to clearly describe the construction and operation of these Zero-printing frames, i will refer to that part which carries the type as 74 and to that part which rests on the bar 73 as 75. I will assume that the middle segment has been operated so as to present type 5 under the printing-hammer, and in its movement to the rear to accomplish this the arm 75 has passed beyond rod 7 f3, and its end, acting as a cam-face, has raised said arm until its outer face has contacted with a projection 7G on the arm 75 to the right. This will cause the elevation of said next arm, and as this last-mentioned arm is also beneath a pin on the next adjacent arm to the right it will raise said next adjacent arm, the operation being carried out on all of the arms 75 which are to the right of the one actuated, which passes beyond the bar 73, as shown in Fig. G. These arms 75 are each curved on their outer faces, said curve being described from such a center as will be common tothe axis of shaft 66 when said arms are raised, as shown in Fig. 6. By so curving the outer faces of arms 75 it is possible to operate any segment to the right of one previously operated without disturbing the relation of any of the pins and arms, as above described. rThe elevation of the arms 75 causes the portion 74 to aline itself so that its printing-character zero will be in line with the number to be printed. In this connection it might be well to say that the movement of the portion 7l is limited by contacting with the rear end of the printingsegment on which it is pivoted. The normal position of these printiiig-segments G5 and the pivoted naught-carrying arm 7l is such that a space is left between them, and at any operation of the lever which would not operate any of the priming-segments,but would cause the i;yj' e-lmi1iiiier to deliverablow, such blow would be struck between the segments and their pivoted naught-carrying arms or into space. This construction permits the paper te be spaced without printing characters upon it at every operation of the lever and is useful in dividing columns of iigu res where it is desired to separate one list of numbers from another.. lt is also advantageous in that it saves the type and ribbon from unnecessary wear.

When the types are in position, a hammer is operated to force the paper upon which the impression is to be made into contact with the ribbon interposed between said paper and type.

72 indicates the ribbon, 77 the paper to be printed upon, and 7S the hammer for making the impression.

I will now describe how the hammer is operated and how the paper is fed for each impression.

70 indicates a projection extending from the operating-lever 22, to which projection is secured a sliding piece SO. This sliding piece SO has pivoted to its rear end a dog Sl, which is adapted to come in contact with a tappet 82, secured on the end of a shaft SS, upon which shaft a frame Si is fixed. Itis in this f rame that the spring on which the type-hammer is mounted is secured. A spring S5 is secured to a stationary part and to the frame Si for giving force to the blow of the hammer, which blow is made by the resiliency of the hammer-spring, said frame being arrested in its movement to permit this. The operation of the ham mer is shown by the dotted lines in Fig. 2, which illustrates the dog raising the tappet and the hammer elevated to a position to deliver the blow. This foward movement of the operating-lever 92 carries with it the sliding piece 8O to accomplish the above, and in order to effect the feed of the paper I mount in said sliding piece a screw SG or corresponding lug, which engages anarm S7, in which arm is mounted a pawl S8 to operate a ratchet-wheel Si), conjoined to the feed-roller S0. ill indicatesan idle-roller, between which and the roller 90 the feed of the paper is effected. The shaft S3 is supported at its ends by an arm 92, said arm permitting the introduction of the paper to be printed upon from the side, whereby it is possible to print directly upon the leaf of a book. This shaft 83 is also grooved circumferentially, as at 93, with which grooves is adapted to cooperate a spring Sli, secured to the frame 95, between IOO g senses whose side bars the feed-.roller OO arranged.

The shaft upon which the feed-roller is mounted is grooved longitudinally and the feedroller is keyed thereon, which permits said feed-rollerbeing slid longitudinally the shaft with the frame 95. By this construction when a column of figures has been printed and it is desired to print another column en the same sheet or leaf, it is only necessary to move the spring out of its notch and to slide the feed-roller and frame 95 longitudinally the shaft until the spring .l-l engages with the other recess 98. Gf course, as but one means is shown for feeding the paper in but one direction, the bool; would also have to be moved back, so that the figures of the new column would start at the top of the page and the page then gradually fed onward.

l have not shown any means for an tom atically feeding the ribbon, because such is a common expedient, and there are many forms of ribbon-feed which could be employed with success.

l have described the operation of the machine Yfor recording, adding, and printing, for it will be understood that the transfer meehanism, as l have termed it, will add each number printed to the snm total as indicated by all of the indicating-wheels, while the printing-segments will print each number separately.

l will now describe how the total, as indicated by the adding-wheels, is printed by the printing-segments.

Projecting up from the keyboard at some convenient point, preferably at the left-hand side of the keyboard, is a total-key 9G, said total-hey having connected to it the end of a lever G7, which lever is pivoted at 0S te the framing of the machine. The rear end of lever 07 carries a cross-bar Q9, which crossbar is perforated or formed with openings for the passage of stop-bars 100, which are formed with heads at their rear ends, between which and the bar 09 are interposed springs whose tension is directed to constantly keep the bars 1GO in their rear position. A shoulder on the bars is adapted to contact with bar 99 to determine this rear position. The for- -iward ends of the bars 100 pass through openings or grooves in the bar 39 and are in line with snail-wheels lOl, conjoined to the wheels 1G and 17. The peripheries of these snailwheels,7 as l call them, are divided into ten divisions, each of which ten divisions is described from the same center or shaft 18, but on different radii.

I do not wish to be understood aslimiting myself to the exact construction of the snailwheels shown and described, as it is obvious that a smooth cam lOl, having a regular graded surface, as shown in Fig. l5, would perform the same function. The lower portions or members of the printing-segments G5, to which the links Si are connected, are provided with pins or projections 102, which are adapted to engage shoulders 103 on the stopbars 100. The total-key before referred to has connected to it also a rock-arm lO-t, pivoted at 105 in the framing of the machine, said rock-arm lost being duplicated on each side of the machine and carrying a bar 10o, which is adapted, when said total-key is depressed, to depress all of the trips l2 and release all of the rack-bars in. the machine. Tlhen the total-hey is depressed, its `first movement is to elevate the bar Q0 and throw the shoulders 103 of the stop-bars l0() in front of the pins or projections 102 on the lower members of the printing-segments. A continued movement of the total-hey will cause all of the trips to release all of the rack-bars, as above described, when said rack-bars will move forward and carry with them the lower portions of t-he printing segments. The shoulders 103 of the bars 100 being new elevated 'in the path of pins 102 will also be earried forward until the forward ends of the stop-bars 100 are arrested by the snail-wheels, which determine the position of the printingsegments and cause the character presented under the hammer to represent the step on the snail-wheel with which the stop-bar lOO engages. The lever 22 is now pulled 'forward and through the medium of the mechanism before described will cause the hammer to de liver a blow. This movement of the lever 22 will actuate the adding-wheels in the manner heretofore deseribed-that is, the wheels lf3 will be made to engage with the racks l5 unless the lever 2S is moved so as to operate the dog A through the medium of the rod 27,whieh will elevate said dog so that it will .not engage the lever Q5 to depress the frame of the adding mechanism. ln this manner the total can be obtained without disturbing the adding` mechanism.

if itis desired to restore the adding-wheels to a Zero position, the lever is moved forward a short distance until the adding-wheels have engaged the rack-bars. The lever is held in this position and the total-key depressed, or, what would be an equivalent here, all of the 9 keys operated. rl`he release of all of the rack-bars would cause them to move forward and impart a reverse rotatory movement to the adding-wheels which would continue until the pins 35 were arrested by striking on top of the hook-bars, which would establish a Zero position of all of the addingwheels. After this is done, which takes but little time, the lever 28 is operated to disengage the adding-wheels from the racks, and the lever 22 is moved forward to complete a full operation, which, as above described, would restore the rack-bars to their normal position. lt is obvious that as there is no hook-bar necessary for the last adding-wheel at the left some provision must be made to stop said wheel in its reverse movement. I have shown a stop 3o yielding in one direction to permit the pin to pass, as in. its ordinary operation, said stop or pawlf7 as it might be called, arresting said wheel in its re- IOO ICS

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verse operation and causing it to stop at zero, as shown in Fig. 14.

Vhenever the lever 22 is actuated and it causes a movement of bar 3st to the rear, said bar, near the completion ot its movement, will come in contact with a sliding bar 107, arranged at the side of the machine, which bar 107 cooperates with a lug 108, extending from rock-shaft 100, arranged at the rear end of the machine. This rock-shaft operates a link 110, which is connected to the frame in which the shaft 51 is mounted. The attachment of rods to the shaft 100 is to one side of the center, so that whenever the sliding bar 107 is moved to the rear by the engagement of the cross-rod 31- therewith said shaft 109 is thrown upwardly, as shown in Fig. G, so that the connection o1 link 110 is past dead-center. By this means the frame in which shaft 51 is mounted and the frame 40, mounted on shaft 50, are each moved upwardly on the principle ot a toggle-joint.

111 indicates a toothed arm extending from the shaft 100 into the path et pinion 52, as shown in Fig. G. A. spring 107 is secured to the sliding bar 107 and to the frame o1 the machine, said spring exerting its tension to pull said bar forwardly at all times. Yvhen the lever 22 is released and permitted to go back to its normal position, said bar 107 will be moved forwardly, and, after the pinion 52 has completed its work of transferring' the numbers from one adding-wheel to another, its final operation is to engage the teeth on the end of arm 11.1, throwing said arm rearwardly, as shown in Fig. 5, so that the pinion will drop out of the path of any hook-bars which may have been operated between the travels of the pinion. The object ot' this is to throw the pinion 52 out of the path of the projections 42 by causing the depression of the frames L.t0 and 51% This lowering of the pinion 52 and its shaft 51 occurs only when the pinion is idle and is being moved from its position at the lett ot the machine to its position at the right of the machine, where, by the time the pinion has reached said right position, the lever 22 will have completed its vforward movement, stored up power in the spring 50, and caused the bar 107 to operate the projection 108 to throw the pinion 52 into an operative position. Nhen the pinion cempletes its movement from right to lett, actuating the different adding-wheels in its path through the medium of the hook-bars and their associate parts and reaches its position at the left of the machine, it will throw the arm 111 down and will then be in an inoperative position until moved to the right side of the machine, when the above operation will be repeated.

In the above description 1 have referred only to the mechanism used for the purposes of keeping a total of the amounts recorded, such as in the adding-wheels, the mechanism for printing each separate amount recorded, such as the printing-segments and their associated parts, and the mechanism by which the total of the amounts recorded and of the items printed could be obtained.

I will now describe the mechanism whereby it is possible to multiply any number by another. Y

Fivoted at 112 to the framing of the machine is a lever 113, which is provided at its upper end with a yielding detent which engages a sector 111, said sector being notched to cooperate with the yielding detent of the lever 113. The lower end of this lever is slotted to receive a pin secured to a sliding bar 115, which sliding bar supports a detainingbar 110, there being preferably two of said sliding bars 115, arranged one on each side of the machine and connected by a cross-rod 117 at their rear ends. 11S indicates links which are connected to the key-bars t and to detaining-lingcrs 110, pivoted on a rod 120 at the front end of the machine. Secured tothe lever 113 is a sliding rack-bar 121, which is adapted to move with said lever when said lever is placed in its desired position, said rack-bar being operated upon by suitabie mechanism actuated from the lever 22 to rcturn the lever 1153 to its normal position. This is accomplished as follows: An arm 122, extending from the lever 22, is provided with an inwardly-projceting pin or lug 1221l on its outer end, which pin is adapted to come in contact with and opera-te a pivoted lever 123, said lever 123 being pivoted to the trame o1' the machine and normally held against a stop 124 by a spring 125. The forward end of this lever carries a pawl 120, whose rear end engages with the teeth of rack-bar 121, while its forward end is concaved and cooperates with a stop-pin 127, mounted upon the lever 113. The operation of this mechanism is as follows: \Vhen the keys are depressed, as shown in Fig. 4f, they also depress their attached detaining-lingcrs 110. Assuming now that it is desired to multiply a number indicated by the depressed keys by any number within the scope of the number of notches on the sector 114C, the handle 113 is moved to the rear, so that its spring-detent engages with that notch, for illustration the ninth notch from the front end of the sector, as shown. This movement of the lever 113 to the rear will cause its detaining-bar 116 to move forwardly over the detaining-hngers of the depressed keys, as shown, keeping said keys depressed until the detaining-bar will have moved to the rear a sutlicient distance to release said hngers. When the handle is moved forwardly, the operation of the machine, as before described, will result, and in addition to said operation the handle will Operate the lever 113 by the engagement of the pawl 120 with the rack 121. This is done by the engagement of the pin 122 on arm 122, which strikes the lever 123 when the lever 22 is nearing its return stroke, which causes the pawl 120 to move to the rear and the detent engaging with the notch IOO IIO 

